PMI laser scanned and provided annotation 3D model of a historic log barn.
Relocation of Historic Log Barn with Laser Scanning and 3D Revit Annotation Modeling
by Carrie Van Loon
PMI provided scanning and modeling services for a Dallas area historic log barn. The local municipality wanted the barn scanned before they disassembled it. The reassemble team wanted to be able to identify every log location, so they could reassemble it exactly like the original building.
Anna Texas released a bid for a historic barn to be relocated from its original location to a historic area that the town was creating.
PMI’s scanning team carefully scanned each area of the 900 square-foot barn. Each log was numbered to allow for accurate placement. The benefit of numbering each log was to give the reconstruction team a way to quickly reassemble the barn at its new location.
When the team had previously moved historic buildings, it found reassembling the building at a new location to be incredibly challenging and time-consuming. They produced the idea to not only create a 3D CAD model, but to have all the parts numbered, so the reconstruction team could quickly and accurately rebuild the structure at its new location. Accurate measurements of the structure and a way to number each log before the structure was disassembled were prerequisites to success. So, the reassembly team could quickly and accurately reconstruct the structure in its original form.Inserting asset management information in the record model is one of many steps in accomplishing digital twins. Even this basic indexing allows the end user to be proactive in facilities management, reducing the possibility of unexpected failures, safety issues and more.
Number each log for quick identification in the delivered 3D annotation model.
It was agreed that the project was a bit limited in scope to truly benefit from a rigorous BIM and VDC standard. PMI offered resourceful, cost-effective solutions to satisfy major project deliverables without negatively impacting the project schedule. PMI’s responsibility for the technology portions of the project allowed our partner to fully focus on what they do best – renovating critical pump stations infrastructure.
The benefit was that this historic barn was successfully relocated to a new location and reconstructed exactly as it was originally built. Now the barn will be authentically preserved in its original form.
PMI laser scans and builds a 3D Revit digital twin of asset information model.
Asset Management Information with Laser Scanning and 3D Revit Modeling
by Emma Stasek
PMI was asked to participate in a pump station renovation in which asset and building life cycle management were high priority. Capturing post demolition conditions with terrestrial laser scanning assisted with the design process, and scanning final construction validated construction, graduating the design documents to as record drawingrelevant for management of the building life cycle. The record drawings feature asset data such as model information and serial numbers for major equipment, key information for maintenance and repair.
Our partner’s primary challenge was their lack of in-house capability to handle the BIM and asset management requirement in the specification. PMI picked up this part of the project on their behalf.
It was agreed that the project was a bit limited in scope to truly benefit from a rigorous BIM and VDC standard. PMI offered resourceful, cost-effective solutions to satisfy major project deliverables without negatively impacting the project schedule. PMI’s responsibility for the technology portions of the project allowed our partner to fully focus on what they’re best at – renovating critical pump stations infrastructure.
Inserting asset management information in the record model is one of many steps in accomplishing digital twins. Even this basic indexing allows the end user to be proactive in facilities management, reducing the possibility of unexpected failures, safety issues and more.
PMI laser scans and builds a 3D Revit model of a synagogue for Interior Facades and tile replacement.
Façade replacement using Laser Scanning and 3D Revit Modeling
PMI was hired to worked with a construction company that had a project that needed to replace a unique Synagogue interior facades and tile replacement. The design of the façade was pieced together as a puzzle board in a very non-unformed unique design. During consulting with the contractor,our team laser scanned the location, and we took the data that we collected to model the complex walls using the program Revit. Our modeling team took all the precautions in the BIM Revit model to ensure that each tile was numbered and aligned, so when the new tiles arrived the client could replace them in the exact location needed by the clients’ requirements.
Pictured above is the exterior of the Park Synagogue located 27500 Shaker Blvd, Pepper Pike, OH 44124
The façade stands at a height of two stories tall, which made measuring manually an impossible and complicated task to complete. Without the use of our laser scanning team and the data collection to accurately document each tile placement and thickness, the job of replacing each of the tiles would become a difficult project.
PMI’s laser scanning team went and scanned the interior façade of the Synagogue. The data collected from the laser scanning allowed our team to create a 3D Revit model with 2D floor plans and elevation sections of the interior walls and tiles. This allowed the contractor to digitally catalogue and recreate the new interior wall panels through an additional woodworking vendor for replacement tiles.
PMI develops a Historic Revit Model of the Clarendon Park Community Center and Field House.
History of The Clarendon Park Community Center and Fieldhouse
Originally called the Clarendon Municipal Bathing Beach, was constructed in 1916 as a modern facility for one of Chicago’s most popular lakefront beaches. The structure began very close to the shoreline however, over time the land area between the building and the shoreline was filled to extend parkland and the addition of Lake Shore Drive. Today it is used as a community center and field house. Failure to address long-standing maintenance issues has resulted in a threat to the building’s future and use by the community. In mid-2020 a multi-million dollar plan was approved by the city to start the rehab process and save the Clarendon Fieldhouse. As part of the approval process for a historical municipal space, a historical record is required by the City of Chicago.
For years people would approach this task by manually producing 2D drawings of floor plans, sections, and elevations. As a result, this error-prone, manual approach leads to the architectural and ornamental details of these historic buildings being lost. By implementing their Reality Capture and BIM services approach to fully documenting a high level of detail on the building inside and out to produce a 3D Historic Revit Model. Using an array of reality capture technology, including laser scanners and drones, we were able to quickly capture all data necessary for the creation of a Revit model. On the software side, we deployed Revit, Revizto, and BIM 360 to develop and quality check the model.
PMI has a long history of developing some of the most complex and difficult historic Revit models so we knew we would be up to the task of developing this model. On this project, the Historic Revit Model represents a complete “As-Built” condition record of its current state and condition at that time of documentation.With this accurately represented model, proposed renovation designs can be superimposed on the As-Built to help provide a better understanding of what it might cost, what it might take to build, and what it might look like so that at the end of the day the public might approve where their tax dollars are going. PMI’s client was pleased with the delivery and timing of the completed project.
4501 N. Clarendon Ave. Chicago, IL 60640
Year Built – 1916
Square Feet – 35,000
Stories – 2
Hardware and Software Used
Terrestrial Laser Scanners
Drones with photogrammetry
About The Author
Peter Abraham has joined the team at PMI as of November 2020, bringing with him 20 years of focused experience in Reality Capture services in the AEC market, that range from data capture expertise to Virtual Design and Construction management.
The James Scott Fountain was scanned by PMI pro bono for the Belle Isle Conservancy to assist in the historic restoration of the fountain. The scanning process took just 1 day in colored scans and another day to register. The fountain has been damaged, with the beautiful tiles being destroyed, cracks in the base, and stolen copper pipes that had been located under the fountain. The scanned data could be used to help restore the fountain to its prime and to get it back running as the crown of Belle Isle.
The fountain was designed by Cass Gilbert, opened in 1925 and is in Belle Isle Park, Detroit Michigan. The fountain is to honor the controversial James Scott. Gilbert left $200,000 to Detroit to build the fountain and statue of himself. The size of the fountain is 510 feet across and made of marble, with mouths of turtles, lions, Neptune figures and artistic horns that project water from the bottom of the fountain. The original tile border of the fountain is made of Pewabic Pottery.
PMI used Recap 360 to create a mesh of the fountain to create realistic renders in 3DS Max for historic restoration using point cloud data. Textures and water animations were added to the fountain and rendered to a short-animated clip, with water projecting from the turtles, lions, and horns, and a bright sunny surrounding.
Quaified scanning experts have wide-range experience in collecting point cloud data.
Laser scan data will be important for restoration made to the fountain.
Accurate renderings allow for a visual of the fountain at its original state in 1925.
3D laser scanning and modeling will offer the client accurate, as-built certification of the fountain.